Method and apparatus for disposing of refuse



Aug. 5, 1930. s, 5 1 1,772,285

METHOD AND APPARATUS FOR DISPOSING OF REFUSE Filed Marh 14, 192'? 2Sheets-Sheet 1 INVENTOR Pang J- iii'rg die! )M ATTO NEY Aug. 5, 1930.

P. s. KNITTEL METHOD AND APPARATUS FOR DISPOSING OF REFUSE 2Sheets-Sheet 2 Filed March 14, 1927 ATTORNEY Patented Aug. 1930 UNITEDSTATES PAUL S. KNITTEL, 0F JERSEY CITY, NEW JERSEY METHOD AND APPARATUSFOR DISPOSING OF REFUSE A7 pl ieation filed March 14, 1927. Serial No.175,069.

and of the moist garbage and delivering such I mixture to anincinerating furnaceto efi'ect the. complete and odorless oxidation ofthe material. It is also a feature of my present invention to provide.such an organization of the apparatus so that the liquid contents ofthe garbage may be largely recovered for subsequent treatment toextractthe valuable chemical elements therefrom.

With the above and other objects in view, the invention consists in thenovel method and apparatus for the disposal of refuse, as

will be hereinafter more fully described, illustrated in theaccompanying drawings,

and subsequently incorporated in the subjoined claims. I

In the drawings, wherein I have disclosed one simple and practicalembodiment of the apparatus employed, and in which similar referencecharacters designate corresponding parts throughout the several views,Figure 1 is a longitudinal sectional view illustrating a typicalinstallation of the apparatus constituting a refuse disposal plantoperating in, accordance with my new method, and

' Fig. 2 is a plan view thereof.

' The material such as garbage, street sweep.- ings and trash .isdelivered'by the city collectors into the structure 5 at one end of agroup of structures or buildings housing the various parts of theapparatus. The material may be deposited either upon the floor 6, ordirectly into the hoppers7 and 8 respectively. The hopper 7 receivesgarbage or other material of comparatively high liquid content while thehopper 8 receives the dry rubbish or trash. The garbage is fed by thehopper 7 to a pulverizer 9 where it is disintegrated, and is thendischarged upon an endless conveyer 10. This conveyer delivers thematerial to' a dewatering or liquid extracting device 11. Drippings fromthe pulverizer 9 are conveyed by the pipe 12 to a sump 13 while theliquid from the device 4 11 is delivered to said sump through the pipe14. Hard material such as particles of wood and metal are dischargedfrom oneside of the pulverizer 9 upon a second conveyer 15. Thisconveyer is relatively long and extends beneath the other hopper 8 toreceive the dry material therefrom. The dewatered material is deliveredby the device 11 upon the conveyer 15 at a point intermediate of thelength of the conveyer, so thatit will be apparent that this moistmaterial is more or less uniformly distributed upon the dry rubbish ortrash which has been deposited on said conveyer from the hopper 8. Themixture is finally discharged by the conveyer 15 into a storage hopper16.

An incinerating furnace generally indi cated at 17 is provided atits-front with a dutch oven 18 and the mixed material is de.- liveredfrom the storage hopper 16 upon. a

travelling grate 19 upon which it is conveyed through said oven and isvsubjected adjacent its point of entrance thereto to the flame of asuitable burner 20. Pulverized coal, gas or oil may be utilized asa'fuel. The fiame of the burner 20 rapidly heats, dries and ig-- nitesthe material on the travelling grate so that in' its transport throughthe furnace oven the material is largely consumed. A 35 second burner 21may be arranged adjacent the discharge and of the grate 19 by which allremaining combustible carbon contents on the grate will be ignited sothat when the residue is finally discharged by the grate 19 intothehopper 22, the material has been completely oxidized and issubstantiallyin the condition of boiler furnace ashes.

23 designates a suitable arrangement of boilers to which the heat andgases developed in the oven 18'are conducted through a combustionchamber 24. In order to consume all odors and gases, a third burner 25is arranged in this chamber.

The ashesdischarged into the hopper-.22

40 4 v ing the dewatered d stlntegrated refuse 'maare removed therefromby a suitable elevating conveyer indicated at 26 and discharged into astorage bin 27 from which they maybe delivered into transportingvehicles and utilized in the manufacture of cinder block or as fillingmaterials.

Since'the emission of odoriferous fumes into the. atmosphere is avoided,it will be appreciated that the refuse disposal; plant as abovedescribed may be advantageously located Within the city limitsinconvenient relation to the'area of collection. Also by means of myimproved method of disposal, an income may be derived by-the city fromthe utilization of the ashes, and the plant thus operated veryeconomically. l

It is of course, to be understood thatin so far as my new method isconcerned, various modifications of the illustrated apparatus mightberesorted to, and Itherefore, reserve the privilegeof resorting to allsuch legitisistsin delivering dry refuse material upon' a' furnacefeeding conveyer, disintegrating mate changestherein as may be fairlyembodied. vvithinthe. spirit and scope of the inventionasclaimed. i

I claim: I

. 1. In a method of refuse disposal, delivering dry refuse material upona furnace feeding conveyor, disintegrating liquid laden refuse, and thendewatering the disintegrated refuse and discharging the same at a point;.-intermediate the ends of the conveyer upon" the dry refuse materialto obtain a substantially uniform mixture of the dry and moist materialsprior to delivery into the furnace. I

2. Amethod of refuse disposal which con liquid laden refuse material andremoving and collecting the liquid therefrom for recovery of itschemical values, and dischargterial substantially uniformly upon the drydry material on, the feed-conveyer at a pointintermediate of its ends,and means for col- 'lecting theliquid from said distintegrating meansand the dewatering device for recovcry of its chemical values. j

6. 'In a method of refuse disposal, first separating the dry lighterrefuse material from the heavier moist material,- and delivering saiddrymaterial upon a'furnace feeding conveyor, disintegrating the liquid'laden refuse material and delivering the same upon a separate conveypr,then de'watering the disintegrated refuse dischargedfrom the latterconveyor and discharging the disintegrated dewatered refuse material inasuperimposed layer upon the layer of dry refuse material carried bysaid rst conveyor, and finally conveying the separate layers of dry andmoist refuse material together and discharging the same into 'anjincinerating furnace;

In testimony that I claim the; foregoing'as my invention, I have signedmy name hereto.

' PAUL S. -KNITTEL.

materialon said conveyor prior to delivery into the furnace. V

1.3.iA, refuse treating. apparatus including ;a. feed [conveyer fordelivering material to a furnace, .means for discharging dry refusematerial upon said conveyer, a second conveyer,jmeans for disintegratingliquid laden refuse material and discharging 'the same imuponsaids'econd conveyer, and means receivingthe disintegrated material fromsaid latter conveyer and'delivering the same substantially uniformlyupon the dry'refuse material carried by said feed conveyer at a pointintermediate the ends ofthe latter.

. 4.,.A refuse treating apparatus including a. feedconveyer fordelivering material to a furnace, means .for discharging dry refusematerial upon sa1d .conveyer, a second conveyer,smeans, fordisintegrating liquid laden refuse material :and discharging the sameuponsaid second. conveyer, and a dewatermg device receiving the,disintegratedmaterial from said latter conveyer anddischarging

